| 摘要 |
PROBLEM TO BE SOLVED: To form a highly accurate dynamic pressure groove on the outer peripheral surface of a columnar or cylindrical member, and also, to reduce machining time. SOLUTION: The electrochemical machining tool 8 is used for an electrochemical machining device 5 to machine the dynamic pressure groove on the outer peripheral surface 1a of a shaft 1. The electrochemical machining tool 8 is provided with electrodes 21, 22, which are arranged around the shaft 1, and an electrochemical machining part 20. The electrochemical machining part 20 is formed on the inner peripheral surface of each of the electrodes 21, 22. COPYRIGHT: (C)2006,JPO&NCIPI
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